2022 EB5
2022 asteroid-type meteoroid
From Wikipedia, the free encyclopedia
2022 EB5 was a small, two-metre Apollo near-Earth asteroid that disintegrated in Earth's atmosphere at 21:22 UTC on 11 March 2022, over the Arctic Ocean southwest of the Norwegian island Jan Mayen. With an atmospheric entry speed of 18 km/s (11 mi/s), the asteroid's impact generated a 4-kiloton-equivalent fireball that was detected by infrasound from Greenland and Norway.[7][8] A bright flash possibly associated with the event was reported by observers from Northern Iceland.[8]
| Discovery[1][2] | |
|---|---|
| Discovered by | Krisztián Sárneczky |
| Discovery site | Piszkéstető Stn. |
| Discovery date | 11 March 2022 |
| Designations | |
| 2022 EB5 | |
| Sar2593[3] | |
| NEO[a] · Apollo[6][1] | |
| Orbital characteristics[6] | |
| Epoch 11 March 2022 (JD 2459649.5) | |
| Uncertainty parameter 6 | |
| Observation arc | 1.9 hours[1] |
| Aphelion | 4.772 AU |
| Perihelion | 0.888 AU |
| 2.830 AU | |
| Eccentricity | 0.6863 |
| 4.76 yr (1,738 days) | |
| 353.614° | |
| 0° 12m 25.472s / day | |
| Inclination | 10.422° |
| 350.992° | |
| July 2017 (last perihelion) | |
| 222.416° | |
| Earth MOID | 3717 km |
| Jupiter MOID | 0.661 AU |
| Physical characteristics | |
| 2 m[4] | |
| 31.33±0.35[6] | |
It was discovered by astronomer Krisztián Sárneczky at Konkoly Observatory's Piszkéstető Station in Mátra Mountains, Hungary about two hours before impact.[2][8] 2022 EB5 is the fifth asteroid discovered before impacting Earth.[8][4] It was briefly listed on the Minor Planet Center's Near-Earth Object Confirmation Page under the temporary designation Sar2593.[3]
Sun · Earth · 2022 EB5
See also
Notes
- 2022 EB5 is not considered a potentially hazardous object (PHO) due to its small size.[4] A PHO is defined by having an Earth minimum orbit intersection distance (MOID) of 0.05 AU or less, and having an absolute magnitude of 22 or brighter.[5]
